Clamping device.



B. 1. HUDSON.

CLAMPING DEVICE. APPucATloN man lumi 21. 191e..

1,241,629. Patented oet. 2,1917.

INVENTOR BY ff/ w ATTORNEY 'Be 'itk-nown that L'BENJiiiiiN i' a`citizenfof the' United 'States, residing at Wilsey, 'inf thecounty ofMorris andfState` ofK'ansas, havelinvented certainneiv andf`lfinaiivJiiMIi\T'J. iUDsoN, OFWILSELKANSYAS.

oLAiviPi'ivt-x- DEVICE,

T all r07mm t may conce/Mi useful*Improvements in Clampingy Devices,

fof-which' the following isjar'specicationY My invention 'relates to aclamping device' fOr/securing work, especiallyfwheels to'a stand orsupport, and especially aims to y provide. article for this purposewhich maybe operated quickly and will 4enable the present block andscrew devices to be dis- .fpensed vwith and the same end that? theylaccomplish to be effectedina niucli shorter {period of time.

y FurtherI a'inrtoprovide an ele'inent'to extend through the wheel andserve as p i j anchor. for a clamping device to engage the 20,v

wheel. .p f c Ask well, I aim to provide a dog `to fricvtionally engagethe anchor and a means to move the` dog into and maintain it in bitingrelation with the anchor.

Further I aim to provide a link to pivot the dogthrough a fasteningmeans with the pivot adapted to bey moved with the latter' Y to andbeyond the vertical to fasten the dov.

` FVith tlie.`above, and additional objects, suchas will hereinafterappear, in view, the invention vhas `been embodied in one preferred formas hereinafter described and illustrated in accompanying drawings.

In said drawings Figurevl is a View sliowingmy device in side elevationand in use;

Fig. 2 is a verticalsectional view through my improved device with theactuating hany dle. omitted and with the addition vof the` yanchormember;

Fig.4 3 isa plan `view of the cam member employed; v

Fig. -i is a view ofthe blank from which the cam member is formed, and

Fig. 5 is al detail plan view of'one of the yVhile-the vinvention iscapable ofl genyeral'useas a workclamp, yetit is specilically adaptedfor use'` in connection with a.

*"whee'l` and therefore .for the purposes of illustration a=wheel hubisv shown at 6 supported froma work table or stand'?. From fthecenter ofthe table 7 is a rod or anchor 18 extending upwardly above vit and ispivotedl at itslower` end as at 9 to the floor or y, .'SpeeiicationofLetters, llatent.v ,p

il; Hiiinson,

may rest on the upper end ofthe'hub (l. r

#Referring specifically toI the clamping device' proper, 10 designatesadog which .has

lan yopening 11 therethrough and throuo'h Awhich the' anchor or rod`Spasses. Lin is lvare employed andimay be o fany suitable constructionbut are preferably formed;Vy

as sho'wn y'in Fig. 5.

itselfand ladjacentthe` closed end a pivot p A `strip ofimaterialfrom`wliiclithe links'iare made is bent upon I pin 13 passes therethroughand also through the dog 10. At the free ends, the links are separatedsov 'as to'i'receivebetween them side or 'cani walls 14 of a fasteningmember generally designated 1,5. Pivot pins 1G pass through thewalls 14and the links adjacent their free ends. The fasteninomember 15 maybestamped from a flat biiank as illustrated in Figa and then bent into theshape shown in Fig. 3 where the walls 14. are separated and parallel,being bridged by a connecting wall 1G and formed into a socket 17 whichreceives an actuating handle 18a of any suitable construction and whichmay be fastened in place by any suitable means. An abutment member inthe forni of a curved rod 18 may join the cam walls 14,. The cam edge ofthe walls 14 is indicated at 19.

Vhen the work is to be clamped to the is 'also positioned as shown infull lines in 4 the said figure. The anchor 8 passes through the opening11 and the pivots 16 are dise 'posed to the left of the anchor S andthehandle or lever 1Sa is elevated. The anchor 8 may be inengagemeiit withthe abutment member 18. Upon lever 18 being depressed, the cam edges 19will engage/the protecting blocks 94 and the handle willbe depressed toa substantially horizontal position so as to bring the pivot 16 to theright of the anchor S and diagonally opposite edges of the dog 10 of theopening 11 into biting engagement with theI anchor or rod 8. Since thepivots 16 are now to the right of a vertical line, the device willremain in this clamped position until the lever 1Sa is again raised ytothe full line position shown in Fig. 1. The operation of the device maybe accomplished in a short period of time and is readily adaptable towork of varying thicknesses since the dog and device as a whole isfreely4 movable"longitudinally', of the anchor and cooperate therewithat any location.

Sincemerely the .preferred embodiment of the "device hasbeen illustratedand dewith an anchor rod, of a dog having: a pinch-,

scribed, it is to bev understood that changes .ing engagementrwith theanchor rod, a cam having spaced wallsy to Apermit'the passageof theanchor 'rodtherethrougln the cam 1n.

cluding a handle projectingtherefrom, an abutment betweenthe wallsadaptedl to en-v gage the anchor rod .on oneoside, and con-,1 necting:links between the'free ends ofthe dog and the camv at the otherA sideof the rod.

3 2; In a clamping device, the "combination with .1an anchor rod,-of .ahandledqcam hav` ing spaced walls adapted to receive the anchortherebetween, a cnrvedabutrnentvsecured to the sidewalls fthe camandbeing adapted to engage the anchor, link meinbers fulcrumed to the sidewalls of the camk the ulcrumed points ofthe links being norfnlcrumed attheupper ends lof the links said dog having an opening arranged to.permit passage ofA the -anchor rodL therethrough, the ,diagonallyopposite; edges ofl said opening being adapted to engagevangl bite intothe anchor rod Vupon* rotation of the cam, said dog and cam being lockedto said rotated position by' the displacement 1y of the link ulcrums tothe other side of the anchor-rod.

l In 'testimony` whereof Iija'ffx my signaf ture in presence of twowitnesses.

Witnesses:

r BER'rFAY, 'Y 0. H.l BURTON.

i, e BENJAM1N`fJ--AHUDsoN- i A30` mally'at one side of the anchor, andaydog-AV Y 001212501111115 rIier/cent maybe'obtained foxfiive`centsieach, by addressing the Commissioner of fatenbg i v ,A Washington,D. C. i

